Means for attaching draw-off taps to drums, &amp;c.



PATENTED JULY 26, 1904.

A. M. S. WATTS. MEANS FOR ATTAGHING DRAW-OFF TAPS T0 DRUMS, 6w.

APPLIOATIOH FILED JUNE 26, 1903.

H0 MODEL.

UNTTED STATES PatentedJ'uly 26, 1904-.

ATENT FFICE.

ALFRED MONSFJLL SPRAINGER NU TTS, OF PALMERSTON NORTH, NIHV ZEALAND.

MEANS FOR ATTACHlNG DRAW-OFF TAPS TO DRUMS, 81.0.

SPECIFICATION forming part of Letters Patent No. 766,083, dated July 26, 1904.

Application filed June 25, 1903. Serial No. 163,117.

To r1. 1071/0112, it vii/Ly concern:

Be it known that I. ALFRED MoXsnLI. SPRAINGER \VA'rTs, a subject of the King of (ireat Britain, residing at Palmerston North, in the Colony of New Zealand, have invented a new and useful Means for Attaching Draw- Oti' Taps to Drums and the Like; and 1 do hereby declare the following to be afull, clear, and exact description of the same.

This invention has been designed for the purpose of providing means whereby drawofl taps may be readily and efliciently attached to kerosene-tins or to similar thin-metal drums or receptacles containin liquids that are required to be drawn ofl' for use in proportion ately small quantities at a time.

The means devised consist of a special form of barrel that is attached to the tap and which is adapted to pierce a round hole in the side of the receptacle through which it may enter. The barrel is formed with a flange near one end and with a longitudinal radial knife-edged projection upon its outer periphery, so shaped that when the barrel has been pressed into the receptacle and is given a turn the flange will be caused to enter and surround the inner edge of the hole cut in the side. A washer is placed between this flange and a flange formed on the tap, so that when the barrel-flange has entered beneath the side of the receptacle this washer will press against the outer edge of the hole and cause a tight joint to be made.

In order that the invention may be thoroughly understood, reference will be made to the accompanying sheet of drawings, in which Figure l is a side elevation of a tap with the special form of barrel attachment in position upon a tin. Fig. 2 is a plan of the barrel attachment. Fig. 3 is a back end elevation of the same. Fig. 4 is a side elevation of the barrel attachment, on an enlarged scale, showing the manner in which its flange is turned into the tin.

0 is the tap, which may be of any ordinary type. but which is formed with a flange Z) upon its end.

No model.)

0 is the tap-barrel, which is preferably formed of a separate piece to the tap and is secured thereto by being screwed into its flanged end. The inner end of the barrel has a V-shaped groove cut diametrically inward from its end, so as to form two sharp rounded points a c at the end.

A circular flange-platefis secured upon the barrel 0 near the tap-flange l), a short space being left between the two flanges in which is inserted a rubber or other resilient washer r The flange f is broken away for a short distance in its circumference, and one edge It is formed with the inner face of the flange tapering inward, so as to form a sharp edge upon the outer face of the flange.

Secured longitudinally and radially upon the outer periphery of the barrel (3 is a plate j, which is formed with asharp top edge and whose width tapers from nothing at the pointed end of the barrel to the same width as that of the flange f at the other end. This plate is joined onto the other broken edge of the flange f by means of the curved portion Z. (Shown more particularly in Fig.

To attach the tap to the desired receptacle, the pointed ends a of the barrel (1 are pressed down upon the side I. This pressure will cause such ends to pass through the material of which the receptacle is made, and upon the pressure being continued the barrel will cut a disk out of the side, leaving a hole through which it will enter. At the same time as the hole is thus being cut a slot will be cut radially with the hole by the plate j. \Vhen the barrel has been pressed right down through the side l until its flange f rests upon the top side thereof, the tap and barrel are then given a turn while continuing the downward pressure. This will have the effect of causing one edge of the radial slot to turn out over the curved surface Zr, as shown in Fig. i, so that the edge will be inserted between the washer g and the outer face of the flange f. On continuing this turning movement the whole of the flange f will be turned in beneath the under face of the side and thus cause the tin around the hole formed in it to be tightly gripped between the flange f and tap-flange b, the washer g serving to keep the flange f hard up against the under side of the side Z. This will insure a good water-tight joint being effected and will allow of the contents of the receptacle being drawn off through the tap a as they are required.

When the receptacle has been emptied of its contents, the tap may be detached by turning it in an opposite direction, when the sharp edge h of the flange will catchbeneath one edge of the radial slot in the tin and cause the flange to be deflected to the outside thereof.

What I claim as my invention, and desire to secure by Letters Patent, is v 1. In means for attaching draw-01f taps to drums and the like, a tap-barrel formed with pointed tips at one end thereof and with a radial longitudinally-tapering knife upon its outer periphery, and a circular flange-plate upon the barrel, broken away for ashort distance in its circumference to one edge of which the radial knife is attached by means of a curved portion, as herein specified. 2. A tap formed with aflange upon its end, in combination with a barrel one end of which is adapted to be secured to the flanged end of the tap and the other end of which is formed with pointed ends, a flange-plate secured upon the barrel near the flanged end of the tap and extending nearly round the circumference thereof, a sharpened edge upon one end of the flange-plate, and aradial longitudinally-tapering knife upon the outer periphery of the barrel attached to the other end of the flangeplate by means of a curved portion, all as and for the several purposes herein set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ALFRED MONSELL SPRAINGER WATTS.

Witnesses:

W. ALEXANDER, G. WIX. 

